21836648

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{461}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 20741272

約数列:

[1, 2, 4, 8, 31, 62, 124, 191, 248, 382, 461, 764, 922, 1528, 1844, 3688, 5921, 11842, 14291, 23684, 28582, 47368, 57164, 88051, 114328, 176102, 352204, 704408, 2729581, 5459162, 10918324, 21836648]

約数ペア:

[(1, 21836648), (2, 10918324), (4, 5459162), (8, 2729581), (31, 704408), (62, 352204), (124, 176102), (191, 114328), (248, 88051), (382, 57164), (461, 47368), (764, 28582), (922, 23684), (1528, 14291), (1844, 11842), (3688, 5921)]